Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized for You

we will pick new questions that match your level based on your Timer History

Track Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:

(1) the set is an arithmetic progression (2) the first member is 10; the second is 12

What's a definition of arithmetic progression?
can it be that the numbers are simply n+2, producing:
10, 12, 14, 16, etc.
or, would n*1.2 also qualify, producing:
10, 12, 14.4, etc..

the answer to the second question determines the answer here

I have a question, perhaps, it may sound crazy. Does arthemetic progression always mean an addition. Can it not be any formulae. In that case,

Statement A - does not give much of an info on what type of arthemetic progression.
Statement B- also does not provide any information on how the other numbers wud be.

Hence E. Correct me, if my understading on the the arthemetic progression is wrong. _________________

Arithmetic Progression: Numbers in sequence that have a common difference.
Eg: 2, 4, 6, 8...
1, -3, -7, -10....
In general, a, a+d, a+2d, a+3d....

Geometric Progression: Numbers in sequence that have a common ratio.
Eg: 2, 4, 8, 16...
1, -3, 9, -27....
In general, a, ar, ar^2, ar^3....

Geometric Progression: Numbers in sequence that have a common reciprocal ratio (not sure of the term is correct)
Eg: 1/2, 1/4, 1/6, 1/8...
In general, 1/a, 1/a+d, 1/a+2d, 1/a+3d...

Arithmetic Progression: Numbers in sequence that have a common difference. Eg: 2, 4, 6, 8... 1, -3, -7, -10.... In general, a, a+d, a+2d, a+3d....

Geometric Progression: Numbers in sequence that have a common ratio. Eg: 2, 4, 8, 16... 1, -3, 9, -27.... In general, a, ar, ar^2, ar^3....

Geometric Progression: Numbers in sequence that have a common reciprocal ratio (not sure of the term is correct) Eg: 1/2, 1/4, 1/6, 1/8... In general, 1/a, 1/a+d, 1/a+2d, 1/a+3d...

that's exactly right. arithmetic progression always means common difference between the numbers in the set.